Connecting Additional Grounding

Qualified person

If additional grounding or equipotential bonding is required locally, you can connect additional grounding to the inverter. This prevents touch current if the grounding conductor at the terminal for the AC cable fails. The required clamping bracket, the screw and the conical spring washer are part of the scope of delivery of the inverter.

Cable requirements:

Use of fine-stranded conductors

You can use an inflexible or a flexible, fine-stranded conductor.

  1. When using a fine-stranded conductor, it has to be double crimped by a ring terminal lug. Make sure that no insulated conductor is visible when pulling or bending. This will ensure sufficient strain relief by means of the ring terminal lug.
  • Grounding cable cross-section: max. 16 mm²


  1. Strip the grounding cable insulation.
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  3. Lead the clamping bracket over the grounding cable. Arrange the grounding cable on the left-hand side.
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  5. Screw the clamping bracket tight using the M6x16 cylindrical screw and the conical spring washer M6 (torque: 6 Nm). The teeth of the conical spring washer must face the clamping bracket.